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package com.sun.jdi;


The JDIPermission class represents access rights to
the VirtualMachineManager.  This is the permission
which the SecurityManager will check when code that is running with
a SecurityManager requests access to the VirtualMachineManager, as
defined in the Java Debug Interface (JDI) for the Java platform.


A JDIPermission object contains a name (also referred
to as a "target name") but no actions list; you either have the
named permission or you don't.


The following table provides a summary description of what the
permission allows, and discusses the risks of granting code the
permission.






Permission Target Name
What the Permission Allows
Risks of Allowing this Permission




  virtualMachineManager
  Ability to inspect and modify the JDI objects in the
  VirtualMachineManager
  
  This allows an attacker to control the
  VirtualMachineManager and cause the system to
  misbehave.
  






Programmers do not normally create JDIPermission objects directly.
Instead they are created by the security policy code based on reading
the security policy file.

Author: Tim Bell
See Also:
Since:  1.5
/**
 * The <code>JDIPermission</code> class represents access rights to
 * the <code>VirtualMachineManager</code>.  This is the permission
 * which the SecurityManager will check when code that is running with
 * a SecurityManager requests access to the VirtualMachineManager, as
 * defined in the Java Debug Interface (JDI) for the Java platform.
 * <P>
 * A <code>JDIPermission</code> object contains a name (also referred
 * to as a "target name") but no actions list; you either have the
 * named permission or you don't.
 * <P>
 * The following table provides a summary description of what the
 * permission allows, and discusses the risks of granting code the
 * permission.
 * <P>
 * <table border=1 cellpadding=5 summary="Table shows permission
 * target name, what the permission allows, and associated risks">
 * <tr>
 * <th>Permission Target Name</th>
 * <th>What the Permission Allows</th>
 * <th>Risks of Allowing this Permission</th>
 * </tr>
 *
 * <tr>
 *   <td>virtualMachineManager</td>
 *   <td>Ability to inspect and modify the JDI objects in the
 *   <code>VirtualMachineManager</code>
 *   </td>
 *   <td>This allows an attacker to control the
 *   <code>VirtualMachineManager</code> and cause the system to
 *   misbehave.
 *   </td>
 * </tr>
 *
 * </table>
 *
 * <p>
 * Programmers do not normally create JDIPermission objects directly.
 * Instead they are created by the security policy code based on reading
 * the security policy file.
 *
 * @author  Tim Bell
 * @since   1.5
 *
 * @see com.sun.jdi.Bootstrap
 * @see java.security.BasicPermission
 * @see java.security.Permission
 * @see java.security.Permissions
 * @see java.security.PermissionCollection
 * @see java.lang.SecurityManager
 *
 */

public final class JDIPermission extends java.security.BasicPermission {

    
The JDIPermission class represents access rights to the
VirtualMachineManager

Params:
  • name – Permission name. Must be "virtualMachineManager".
Throws:
/**
     * The <code>JDIPermission</code> class represents access rights to the
     * <code>VirtualMachineManager</code>
     * @param name Permission name. Must be "virtualMachineManager".
     * @throws IllegalArgumentException if the name argument is invalid.
     */
    public JDIPermission(String name) {
        super(name);
        if (!name.equals("virtualMachineManager")) {
            throw new IllegalArgumentException("name: " + name);
        }
    }

    
Constructs a new JDIPermission object.

Params:
  • name – Permission name. Must be "virtualMachineManager".
  • actions – Must be either null or the empty string.
Throws:
/**
     * Constructs a new JDIPermission object.
     *
     * @param name Permission name. Must be "virtualMachineManager".
     * @param actions Must be either null or the empty string.
     * @throws IllegalArgumentException if arguments are invalid.
     */
    public JDIPermission(String name, String actions)
        throws IllegalArgumentException {
        super(name);
        if (!name.equals("virtualMachineManager")) {
            throw new IllegalArgumentException("name: " + name);
        }
        if (actions != null && actions.length() > 0) {
            throw new IllegalArgumentException("actions: " + actions);
        }
    }
}